#ifndef LOGGER_H_INCLUDED_
#define LOGGER_H_INCLUDED_

#include "kblib/stringops.h"

namespace detail {
auto log(std::string_view str) -> void;
} // namespace detail

enum class log_level {
	silent = 0,
	err = 1,
	warn = 2,
	notice = 3,
	info = 4,
	debug = 5,
};

auto set_log_level(log_level) -> void;
auto get_log_level() -> log_level;

auto set_log_output(std::ostream&) -> void;
auto set_log_output(const std::ostream&&) -> void = delete;

template <typename... Strings>
auto log_debug(Strings&&... strings) -> void {
	if (get_log_level() >= log_level::debug) {
		detail::log(kblib::concat("DEBUG: ", strings...));
	}
}

template <typename... Strings>
auto log_info(Strings&&... strings) -> void {
	if (get_log_level() >= log_level::info) {
		detail::log(kblib::concat("INFO: ", strings...));
	}
}

template <typename... Strings>
auto log_notice(Strings&&... strings) -> void {
	if (get_log_level() >= log_level::notice) {
		detail::log(kblib::concat("NOTICE: ", strings...));
	}
}

template <typename... Strings>
auto log_warn(Strings&&... strings) -> void {
	if (get_log_level() >= log_level::warn) {
		detail::log(kblib::concat("WARN: ", strings...));
	}
}

template <typename... Strings>
auto log_err(Strings&&... strings) -> void {
	if (get_log_level() >= log_level::err) {
		detail::log(kblib::concat("ERROR: ", strings...));
	}
}

#endif // LOGGER_H_INCLUDED_